Excavator or machine for unloading cars.



No. 679,903; Patented Aug 6,.l90l.

MP. J. MU'LLANEY.

EXCAVATOB 0R MACHINE FOR UNLOADING GABS.

, (Applicatibn filed an. e, 1900.)

' (No Model.)

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No. 679,903. 9 9 Patented Aug. 6,1901.

P. J. MULLANEY. EXCAVATOB 0R MACHINE FOB UNLOADING CARS.

(Application filed (N 0 M 0 de I Jam. 6, 1900.)

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P. J. M'ULLANEY. EXG'AVATOR 0R MACHINE FOR UNLUADING CABS.

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No. 679,903. I Patented Augffi, I901.

P. J. MULLA NEY. EXCAVATOB DB MACHINE FOB UNLOADING CARS.

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I I UNITED STATES PATENT OFFICE.

PATRICK J. MULLANEY, OF CHICAGO, ILLINOIS.

EXCAVATOR OR MACHINE FOR UNLOADING CARS.

SPECIFICATION forming part of Letters Patent No. 679,903, dated August6, 1901. Application filed January 6, 1900. Serial No. 592. (No model.)

To all whom it may concern.-

Be it known that I, PATRICK J OSEPH Mon LANEY, acitizen of the UnitedStates of America, residing at Chicago, in the county of Cook and Stateof Illinois, have invented certain new and useful Improvements inExcavators or Machines for Unloading Cars, of which the following is aspecification.

This invention relates to excavators, and more particularly to thatclass of machinery adapted to unload gondola cars.

The objects of the invention are to provide a machine for unloadinggondola cars and to simplify the construction of the same by dispensingwith useless parts, to reduce friction and vibration to a minimum, andto increase its efficiency.

For the attainment of the several objects my invention consists, inbrief, in certain details of construction, arrangement of andcombination of parts, all of which will be more fully describedhereinafter and the specific points of novelty which will be designatedin the appended claims.

Before proceeding further with a detailed description of the severalauxiliary features of my invention I desire to here distinctly state andemphasize the fact that although I have shown in the accompanyingdrawings and described in the following specific description certaincomponent and cooperative parts which I deem sufficiently improved andoperative to carry out the fundamental principles herein incorporated,however I do not confine myself to the exact details of construction soillustrated and described, since obvious departures may be made withoutdeviating from the inherent and generic features constituting the gisthereof.

In the drawings forming a part of this specification, Figure 1 is a Viewin side elevation. Fig. 2 is a top plan view. Fig. 3 is a verticalsectional View. Fig. 4 is a detail View.

Referring by letters to the drawings, A represents the base of themachine, which is adapted to be secured to a car-floor, the car beingpropelled in a similar manner to those on which steam-shovels aremounted. At the center of the base is a square hollow mast B, whichreceives and supports the shaft 0, the shaft being raised or loweredtherein by a Windlass D, which has-arope a secured thereto. This rope ispassed over a pulley 1), secured in the side of the mast, thence downunder the shaft over the pulleys c c, thence up over a pulley D, securedto the opposite and inner. side of the mast, thence down under the shaftand over the pulleys e e, thence up and over the pulleyf, which issimilar to the pulley b, and is again secured to the windlass, the mastand shaft being provided with oppositely-disposed grooves, in which therope travels.

The shaft 0 is hollow,and revolubly mounted therein is a shaft E, whichis provided at its upper end with a bevel-gear G. The lower end oftheshaft 0 is rectangular in cross-section (see Fig. 4:) and is hollowedout to receive a bevel-gear 72, feathered upon the shaft Alongitudinally-extending slot is formed at the lower end of the shaft 0and communicates with the interior of said shaft. Into this slotprojects a horizontal shaft F, journaled upon braces G and H andprovided at its inner end with a bevel-gear 2', adapted to mesh with anddrive the gear h, before referred to. The shaftF is adapted to be drivenby a pulley and belt or in any other desired manner.

The squared lower end of the shaft 0 is slidably mounted within themast, and said shaft Osupports a circular platform I, which is bracedthereto by horizontal braces J and curved braces K. This platform isadapted to support a frame L, which is so constructed as to revolvethereon. Mounted upon one end of the frame L is a suitable ballast M,while upon the otheris a horizontal shaft N, journaled in suitablebearings and provided with a beveled gear mounted thereon in a groove,so as to permit of the lateral movement of the shaft when thrown to orfrom the machine by the lever O. This gear engages the gear g, thusdriving the shaft N, which is adapted to support and operate theconveyor.

The conveyor consists of a swinging frame P, having oppositely disposedpulleys 70 mounted in each end thereof. Intermediate the pulleys aresprocket-wheels Z, connected by a sprocket-chain m, the uppersprocketwheel being keyed to the shaft N, thus driving the pulleys, uponwhich are mounted the belts Q, which have a series of buckets Rsecuredthereto. The conveyor is adapted to swing up and is secured in thedesired position by the arm S, which is connected to the lower portionof the frame P and is adjustably secured to the frameL. i

Secured to the side of the frame L is a trough T, adapted to carry thematerial elevated by the conveyer. It is supported by suitable bracesand is so arranged as to receive the coal or other material direct fromthe buckets. 1

Having thus described the various features of my invention, What I claimas new, and desire to secure by Letters Patent, is-

1. In a machine for unloadinggondola cars, in combination with a base, ahollow mast having a shaft adjustably mounted therein, said shaftsupporting a circular platform, of the conveyer mounted on the saidplatform and mechanism for operating the same, sub stantially as shownand described.

2. In amachine for unloading gondola cars, a base having a hollow mast,a hollow shaft adj ustably mounted in said mast, said hollow shafthaving a shaft journaled in the center thereof the said shaft having agear keyed at its top, and another mounted in a groove near the base, ofa horizontal shaft having a gear adapted to engage the gear mounted inthe groove and to drive the vertical shaft, of a circular platformsupported by the hollow shaft, of a frame pivotally mounted on the saidplatform, of a horizontal shaft mounted on the said frame having a gearmounted in a groove therein adapted to engage the gear on the end of thevertical shaft and to be driven by the same, the shaft on the framesupporting the conveyor, substantially as shown and described.

3. ,Inamachine for unloading gondola cars, a base supporting a hollowmast, of a hollow shaft adjustably mounted in the said mast the saidhollow shaft supporting a circular platform, the said platform carryinga frame which revolves freely thereon, a shaft journaled upon said frameadapted to support a swinging frame having oppositely-disposedsprocketwheels and pulleys connected by sprocket-chains and beltscarrying a series of buckets, of the said sprocket-wheels and pulleysoperated by the shaft supporting the same, of a lever for throwing theconveyor to and from the machine, of an upright and horizontal shaftconnected by gear-wheels, of the upright shaft connected to the shaftupon the frame, substantially as shown and for the purpose set forth.

PATRICK J. MULLANEY. lVitnesses:

EMIL KRICKHAHN, M. B/VANSICKLE.

